Enhanced performance of METES-modified halloysite nanotube-coated glass surfaces via sol-gel deposition in supercritical CO2 environments

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dc.contributor.authorCengiz, Candan
dc.contributor.authorDuman, Osman
dc.contributor.authorTunc, Sibel
dc.contributor.authorCengiz, Ugur
dc.date.accessioned2026-02-03T12:02:48Z
dc.date.available2026-02-03T12:02:48Z
dc.date.issued2026
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThin film coatings enhance surface functionality in diverse applications such as semiconductors, biosensors, optoelectronics, and microfluidics. The sol-gel method is particularly attractive for its low-temperature processability and ability to yield functional hybrid films. However, conventional techniques struggle to achieve uniform and durable coatings, especially on complex geometries like microelectromechanical systems (MEMS), microreactors, and lab-on-chip (LOC) devices. To overcome these challenges, this study presents an innovative drainage-based sol-gel coating method developed under supercritical CO2 (scCO2) conditions. In literature, this technique was applied for the first time to coat the surface of glass with the coating formulation including halloysite nanotube (HNT) and methyltriethoxysilane (METES). It enabled the successful deposition of HNT-METES hybrid structures onto glass surfaces, yielding coatings with low surface roughness (RMS approximate to 47 nm), high optical transmittance, and tunable surface hydrophobicity. This technique, applied fort he first time, enabled the successful deposition of HNT-METES hybrid structures onto glass surfaces, yielding coatings with low surface roughness (RMS approximate to 47 nm), high optical transmittance, and tunable surface hydrophobicity. Thanks to the low surface tension, high diffusivity, and environmentally friendly nature of scCO2, this approach emerges as a promising alternative for next-generation conformal coating applications that demand precise control at the micro-and nanoscale.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK) [221M385]
dc.description.sponsorshipCanakkale Onsekiz Mart University Scientific Research Projects Coordination Unit [FBA-2021-3580]
dc.description.sponsorshipThis work was financially supported by the Scientific and Technological Research Council of Turkiye (TUBITAK) under the Grant Number 221M385 (TUBITAK Project Number: 221M385) and Canakkale Onsekiz Mart University Scientific Research Projects Coordination Unit (Project ID: FBA-2021-3580) . The authors thank to TUBITAK and Canakkale Onsekiz Mart University Scientific Research Projects Coordination Unit for their supports.
dc.identifier.doi10.1016/j.apsusc.2025.165585
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.scopus2-s2.0-105024749295
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2025.165585
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34878
dc.identifier.volume722
dc.identifier.wosWOS:001642607600001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofApplied Surface Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260130
dc.subjectDrainage method
dc.subjectMETES
dc.subjectSol-gel
dc.subjectThin film
dc.subjectHalloysite nanotube
dc.titleEnhanced performance of METES-modified halloysite nanotube-coated glass surfaces via sol-gel deposition in supercritical CO2 environments
dc.typeArticle

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